Earlier quoted context omitted.
But maybe it could have been? I’m a complete crypto skeptic who would never touch anything like FTT, but it’s not an obvious Ponzi scheme. I think one of the troubles with crypto is that it’s very easy to operate what is effective a Ponzi scheme, without fully realizing it yourself.
If it has no way to wind down to zero it is a Ponzi scheme. Yes the USD and other fiat currencies are partially ponzi schemes as well but only the store of value part.
Yes, you can use these currencies as a store of value, and therefore get utility from exchanging them with somebody in the future, but that's not where the value of the currency itself derives from (which is 1. the utility of the currency itself (people want to transact in it in personal affairs, because it's more efficient and reliable than the alternative), and 2. the authority of the state (people must transact in it in state affairs)). Call it what you will, but it's not a ponzi scheme. If you're looking for things in traditional fintech that resemble a ponzi scheme, look at something like a non-voting stock without a dividend.